Cerium(III) Amide Enolate. Addition of Propionamide to Conjugated Enones
摘要:
The cerium(III) enolate of propionamide 1 was found to undergo preferential 1,2-addition with most of the sterically hindered conjugated enones studied. The effects of HMPA and 12-crown-4 on the regioselectivity were also investigated.